//
// Created by 吴锐 on 2022/2/28.
//

#include "iostream"
#include "string"

using namespace std;

void test01(){
    string a1 = "hello world";

    char* str = "hello world";

    string s2("hello world");

    cout << "s2 = " << s2 << endl;
}

int main(){
    test01();
    return 0;
}